Mule.



No. 781,822. PATBNTBD PEB. 7, 1905, L. o. GOODWIN.

MULB.

APPLICATION FILED 00T.15, 1903.

3 SHEETS-SHEET 1.

No. 781,822. PATENTED PEB. '7, 1905. L. 0. GOODWIN.

MULE.

AEPLIOATION FILED 001215, 1903.

3 SHEETS-SHEET 2.

PATENTED PEB. 7, 1905.

L. 0. GOODWIN.

MULE.

APPLIoATIoN FILED 00115, 1903.

3 SHEETS-SHEET 3.

' IO, 781,822. Patented February 7', 1905.

UNiTnn STATI-3s ATENT Ottica.

LYMAN O. GOODVIN, OF NORTH ANDOVER, MASSAOIIUSICTTS, ASSIGNOR TO DAVIS 8a FURBER MACHINE COMPANY, OF NORTH ANDOVER, MASSACHUSETTS, A CORPORATION OF `nIASSAOl-IUSICTTS.

IVlULE.

SPECIFICATION forming part of Letters Patent No. 781,822, dated February 7, 1905.

Application led October 15, 1903. Serial No. 177.148.

" -'1// 1/'710/1/y 'HL/fff/ ('0lb0F7b-- may remain in drivingengagement with the Be it known that I, LYHAN O. GOODWIN, a clutch-shaft, carryingthe slidableV member ot' 50 citizen ot' the United States, residing at North the clntcl1,\vhich is closed automatically when Andover, in the county ot' Essex and State ot' 1 the ease mot-ion is made operative to move the Massachusetts, have invented an Improvel carriage.

mentin Mules, ot' which the Jfollowing descripl To adapt a mule to ditlierent qualities and tion, in connection with the accompanying sizes otl yarn and to varyingdegrees ot twist drawings, is a speeiiication. like letters on the in the yarn, itisnecessary to he able to change drawings representing' like parts. the speed ot the clutch-shaft tor starting' the 1o This invention has for its object to improve ease motion to thereby control the speed at and simplify the construction ot' self-acting which the carriage may he moved inwardly nulles, my invention being' shown as applied while completing the twist. This is effected O to a mule ot' the class shown in United States in the present case h v a train ot' change-gears Patent No. 113,1'81, dated April 1S, 1871, and intermediate the longitudinal shaft carrying I5 issued to Peter McGovern, and in United the worm-gear reterred to and the short shaft States Patent No. 272,401, issued FelnuaryQO, for rotating the clutch-shaft.

1883, in the name of E. A. Baldwin. The extent ot inward movement ot' the car- 65 My improvements to be herein described riage when under the control otl the ease-moare directed chiefly to the so-called ease tion mechanism is determined h v or through zo motion," which includes devices instrumental the twist-slide or carriage ot' any usual twist in starting' the carriage and moving the same motion, and the ease-motion mechanism havslowly for a short distance inwardly or toing moved the carriage inwardly for the de- 7C ward the mule-head after the completion of sired distance the carriage is disengaged authe di-aw, which draw is eii'ected by the tomatically from the rack referred to and the outward run otl the carriage, the slow motion case-motion lever common to mules (at the eir'ected by the ease motion taking place while end ot' the inward motion) put into its norcompleting the twist and prior to winding the mal position to he reengaged and moved at 75 yarn on a spindle, cop, or bobhin, the slow the completion ot'the nextoutward movement inward movement otl the carriage "easing I ot' the farriage. The carriage is started in- 3o up" on the varn to compensate tor the short- 1 wardly at speed to wind the yarn in usual ening ot' the yarn due to the twist. The ex- 5 manner and hy any usual mechanism, not neetent ot inward movement ot' the carriage due essary to he herein described, hut which may 30 to the ease motion depends on the quality and be common to the McGovern or other sell'- tineness ot' yarn and the degree otl twist. i acting' mule.

lleretot'ore the chietl parts of the ease-mov In the drawings, Figures 1 and 2 taken totion mechanism have been attached to the gether representa side elevation ot the elliot' mule "heath" but in accordance with my imparts ot` a self-acting mule to which my invenprovements to be herein described 1 have tion has heen applied. Fig. 3 is a view, enchanged the construction of the ease mechanlai-ged, ot' the stand located at the outer end 40 ism and have located it at the place where the ot' the run ot' the carriage, said ligure showoutward movementot' thecarriage terminates, ing the opposite side ot' the parts shown in and I have prepared to actuate my ease mol Fig. 1. Fig. 1t a right-hand end view ot' 9o tion by the rim-band driven in usual manner Fig. 3. Fig. 5 shows two views ot' the slidsubstantially continuously. I have mounted ingl bearingl C detached. Fig. o shows two the driving-pulley of the ease motion so that l views ot' the worm-gear detached. Fig. T it may be adjusted to take up any slack in l shows a side and end view ot' the clutch part the rim-band drivingI said pulley, and yet the I and pinion D D. Fig. S shows a side elcval the worm on the shatt oi said driving-pulley tion and under s1de view ot the slide-bar 1)" Fig'. 9 shows a side elevation and Fig. IO

detached. end view of the stand D10 detached.

shows a side elevation and plan of the cam-` Thesepulleys drive the rim-band A1, which' is passed one or more times about the grooved periphery of each pulley. This rim-band is also extended over a sheave A1, mounted loosely on the drawing-in shaft A6, said sheave having' in practice coacting with it in usual manner a friction, so that the sheave at times accomplishes what is called the "backing-off motion. The rim-band is also carried over a sheave A7, mounted loosely on a stud AX. The scroll-shaft is designated A. The carriage A1 has pivoted upon it at A12 the ease-up dog A13, it having an adjustable stud A11, that normally is just above the latchrod slide A11. This dog has a second adjustable stud A16, that may at times engagea notch of a slide-bar to be described.

The parts so far described are substantially such as common to the McGovern mule (represented in United States Patent No. 113,784, dated April 18, 1871) and other subsequent patents of the same inventor and said E. A. Baldwin In the patents referred to the easemotion mechanism was located in the head and comprised quite a large number of parts that had to be contained in a limited space. Herein in my eorts to simplify the mule I have by changes of construction dispensed with a number of parts in the ease motion and have located the new parts at the quadrantsta-nd at or near the outward run of the mulecarriage.

I will now describe my improvements relating' to the ease-motion mechanism.

At the outer end of the run of the mulecarriage I have erected upon the usual quadrant-stand base B a stand B', sustaining a g'uide-rod B1. The stand B has suitable bearings to sustain a shaft B3, having at its end outside said stand a pinion B1, constituting one of a series of change-gears B5 B1. The change-gear B1 is mounted on a stud BW, adjustably sustained in the stand, and the larger gear B1 is keyed on a shaft B1. Ears a. extended upwardly from the stand B, (see Fig. 4,) sustain a screw a', having its head a2 shaped to receive a wrench or key by which to rotate the screw. This screw is free to be rotated, and the threads of the screw engage threads of a slidable bearing C, (see Figs. 3, 1,

and 5,) that sustain a shaft C', upon which is fast the rim-band pulley C2, said shaft having secured to it near one end by a suitable pin G3 a worm C1. This worm engages and rotates a worin-gear C5, shown detached in Fig. 6 and keyed to the shaft B3 by any suitable feather, so that said worm-gear may be moved longitudinally of the axis of said shaft. The hubs of the worm-gear are embraced by loops C6 of the bearing' C, so that when said bearing is moved longitudinally by the screw refer-red to the shaft carrying the rim-band will also be adjusted to take up and compensate for any slack in the rim-band, and, notwithstanding the adjustment of the shaft carry-- ing the rim-band pulley, the worm-gear, actuated as described, is enabled to actuate the shaft B3 always in the same manner whatever the position of the rim-band pulley.

It will be understood from the description so far detailed that the shaft B7 .is rotated whenever the rim-band is rotated and in one or the other direction, according' to the direcy tion of the motion of the rim-band, the motion of the rim-band being changed as provided for in the McGovern and Baldwin patents-wf. e., when the carriage is moving outwardly the rim-band is moving in one direction, and when the backing o is taking place preparatory to winding on the rimband is reversed to a slight extent, and the backing oli1 having taken place and the vcarriage having been started forwardly by the case motion, as will be described, the motion of the rim-band pulley is again in the same direction that it had when the carriage was running out, but at a slower speed.

The stand Bl has suitable bearings for sustaining what I shall designate as a clutchshaft77 D, it occupying a vertical position and having` fixed to its upper end a bevel-pinion D, that is in mesh continuously with a bevelgear D2 on the shaft B1, constituting part of the mechanism for actuating the clutch-shaft. The shaft D at its lower end has applied to it loosely a gear D11, the upper end of which is shaped and toothed, as at D1, to constitute part of a clutch.

The gear D is normally in engagement with teeth D5, formed in one side of what I shall designate the ease-motion slide-bar D, provided at its opposite end (see Figs. 1 and 8) with an incline D7 and a notch D8. This slide-bar is guided by suitable stands, as D9 D10, the stand D10 being' shown detached in Fig. 9. The pin A11 engages the notch Ds and moves the slide-ba1',with the carriage, for a short distance, as shown in part in Fig. 1, this motion of the slide-bar causing its teeth in engagement with the pinion D3 to restore the clutch part D1 into the position it should occupy when the clutch part E111, to be described, is' to start said clutch part and slidebar to start the inward run of the carriage.

As the carriage is completing' its outward run the projection E of the carriage (shown in full lines, 2, and by dotted lines, Fig. l) meets the drawing-out clutch-lever E, pivoted at E?, of an ear of a stand EX, and moves the upper end of said lever to the left, placing it in the position shown by full lines, Fig. 3.

The stand D1" sustains acam-bar E3. (shown detached in Fig. 10,)having secured .to itby a set-screw E a dog (see Fig. 11,) having a stud E, that receives over it a hole in a link ET, jointed at E to the lower end of the drawing-out clutch-lever, so that as the carriage completes its outward run the slide E is moved in the direction of the arrow thereon, Figs. 1 and 1, to remove the cam 10 of said slide from under a stud 12, carried by the forked end 13 of a lever E", pivoted at E10, permitting the forked end of said lever standing in an annular groove eX (see Figs. 1,3, and 12) of a clutch-sleeve E, loosely connected by a pin and slot n ff' (see Fig. 2) with the rotating clutch-shaft D, permitting said clutchsleeve provided at its lower end with teeth E and constituting the second member of the ease-motion clutch to drop and engage the teeth l)vl of its coacting clutch part and immediately start in motion the gear D. As the gear l): is started its teeth in engagement with the teeth of the slide-bar D immediately start said bar toward the head A inthe direction of the arrow, Fig. 1, and inasmuch as the pin of the easeaip dog is yet in engagement with the notch of said bar the carriage will be started inwardly for a short distance. This first inward motion of the carriage, produced by means independent of those usually employed `for running the carriage outwardly during the d rawing of the yarn and for drawing inthe carriage duringwinding, and which takes place immediately after drawing the yarn and during the twisting preparatory to winding on, is designated in mule phraseology as the ease-up motion. This slow inward motion of the carriage compensates for the shortening' of the yarns dueto the amount of twist put therein, and the twisting having been substantially completed the ease-up motion is disconnected from the carriage bylifting the ease-up dog, as will be described, and the carriage will be started quickly on its inward run to wind up the yarn.

lt is necessary in the production of yarn that the speed at which the ease-up-motion mechanism acts to move the carriage inwardly should vary according to the quality of stock and the amount of twist, and I provide for this change of speed by or through a change of the intermediate gear B". Byehangingthe position of the ease-motion mechanism and locating the same at the outer run of the carriage l am enabled to dispense with the long rod usually extended from the front of the head bacliwardly, and I am also enabled to dispense with a lever which is usually attached to the floor and with which parts of the rod are adjustably connected, the adjustment of the rod to the lever providing for changes of speed during the inward run of the carriage when the ease-up motion mechanism is operated.

The ease-up dog in practice has connected with it a rod that is operatively joined with a rocker-shaft in the mule-carriage, said rockershaft being' common to the Mchovern and Baldwin mules, and on being' turned lifts said dog and frees it from the notch Dsjust as the backing-oft' friction is disengaged and the drawing-in clutch is engaged with the drawing-in shaft.

The latch-rodf, extended from the head of the mule backwardly through the stand EX, has a hook f', that normally engages with said stand while the carriage is running out. Said latch near that end of it located at the head A has in practice an adjustable dog that meets the usual backing-ott' lever and moves it at the proper time to throw in the usual d rawingin clutch, substantially as in the McGovern mule.

Having described my invention, what l claim, and desire to secure by Letters latent, is

1. In a mule, a carriage, ease-up-motion mechanism includingl a pulley located at the outer end of the carriage traverse and driven by the rim-band, a rack normally out of engagement with the carriage, means to connect said rack with said carriage during the time the ease-up-motion mechanism controls the movement of the carriage, as when completing the twist prior to winding on, means to actuate the driving member of t-he clutch of said easeaip-motion mechanism, and devices controlled by the latter as the carriage completes its outward run, to close said clutch and cause said rack to run the carriage inwardly while completing the twist.

2. In a mule, a carriage, a pulley located at the outer end of the traverse of the mule-carriage and driven by the usual rim-band, means normally out of engagement with the carriage, a raclc, a clutch-shaft carrying part of a clutch and located at the outer end of the run of the carriage, means intermediate said pulley and said clutch-shaft for driving the same` including a train of change-gears for moving' said clutch-shaft at a faster or slower speed according to the stock and the degree of twist therein, and devices controlled by the carriage as the latter completes its outward run to close said clutch and effect the starting of the carriage on its inward run at a slow speed while easing up on the yarn being' twisted.

\ 3. In a mule, a carriage having an ease-up dog, a pulley located at the outer end ot' the run of the mule-carriage, a clutch-shaft, devices actuated by said pulley to rotate said clutch-shaft, a cooperating clutch part, and

IOO

TIO

means intermediate the same and actuated 6. In a mule, a head, a carriage, ease-mothereby to be engaged by said ease-up dog l tion mechanism including' a shaft and clutch,

that the carriage when the clutch is engaged may be started inwardlyT as when easing up on the yarn.

4. In a mule, a shaft having a pulley located at the outer end of the traverse of the mulecarriage and driven by the rim-band` a clutchshaft having mounted loosely thereon one member of a clutch, means actuated by the shaft carrying said pulley to rotate the clutchshaft and its clutch part, a carriage, a coperating clutch part surrounding said clutchshaft loosely,means intermediate said coperating clutch part and said carriage and adapted to be connected with said carriage at or near the completion of the draw-off during the outward run of the carriage, and means to couple the clutch parts of the clutch-shaft that the means intermediate said coperating clutch parts and carriage may be started in their movement to start the carriage inwardlyas when easing up on the yarn.

5. In a mule, a head, a carriage, a rack, ease-up-motion mechanism including' a clutchshaft having' a clutch connected therewith to slide thereon, and a clutch part loose on said clutch-shaft and having an attached gear always in meshing contact with said rack, and means moved by said carriage as the latter completes its outward run to couple automatically said clutch parts to start said carriage inwardly at a slow speed.

and means intermediate said clutch-shaft and carriage and adapted to be coupled with the carriage while the easeup motion is operated, and means including a pulley, shafts and change-gear to actuate the clutch-shaft of the ease-motion mechanism as the carriage completes its outward run, said means insuring the automatic coupling' of the clutch parts that the clutch-shaft may start said carriage inwardly at a slow speed as described.

7. In a mule, a pulley located at the outer end of the run of the mule-carriage, a rimband for rotating said pulley, ashaft sustaining said pulley and carrying a worm, astand sustaining said worm-shaft, a longitudinal shaft having' a worm-gear splined thereon and engaged with said worm, and means to adjust said stand, its pulley, worm-shaft and worm-gear, the latter moving the shaft carrying said pulley to thereby enable any slack in the rim-band to be taken up and yet enable said pulley to rotate the shaft carrying the worm-gear in any position of the worm-gear thereon.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

LYMAN O. GOODWIN.

Witnesses:

NEWTON P. FRYE, SAMUEL F. ROCKWELL. 

